More than 7,700 daily temperature records were broken in the United States in March, with warm records topping cold records by more than 10 to 1. This followed the fourth warmest U.S. winter on record. It's been so warm in the nation's breadbasket that in Iowa more than 58 percent if the state's oats crop is planted. Normally by this time of year just 7 percent is in the ground.
